Route: From Shimla: Shimla → Rampur (130 km, 5 h) → Karcham (60 km, 2 h) → Sangla (26 km, 1 h) → Chitkul (26 km, 1 h). Total 240 km, 9 h. Karcham–Sangla stretch is narrow single-lane.
Fuel: Rampur has multiple IOC pumps (last major). Karcham has a small pump. Fill full tank at Karcham before Sangla.
EV: No EV chargers in Baspa valley. Do not attempt in an EV.
Permits: Indian nationals: NO permit for Chitkul. Foreign nationals: Inner Line Permit needed for Kinnaur–Spiti stretch (apply Reckong Peo SDM, ₹200, same-day).
Monsoon: Jul–Aug: NH-5 (Shimla–Reckong Peo highway) has landslide risk. Karcham–Sangla road especially prone. Add 1-day buffer. Sep is best.
Winter: Nov–Mar: road stays open to Sangla year-round with occasional day-closures. Chitkul road closes with first heavy snow (usually early Dec). Reopens Apr.